"""No-op stub services for absent domains.

When an app starts without a particular domain, it registers the stub
so that ``services.X.method()`` returns empty/None rather than crashing.
"""
from __future__ import annotations

from decimal import Decimal

from sqlalchemy.ext.asyncio import AsyncSession

from shared.contracts.dtos import (
    PostDTO,
    CalendarDTO,
    CalendarEntryDTO,
    MarketPlaceDTO,
    ProductDTO,
    CartItemDTO,
    CartSummaryDTO,
)


class StubBlogService:
    async def get_post_by_slug(self, session: AsyncSession, slug: str) -> PostDTO | None:
        return None

    async def get_post_by_id(self, session: AsyncSession, id: int) -> PostDTO | None:
        return None

    async def get_posts_by_ids(self, session: AsyncSession, ids: list[int]) -> list[PostDTO]:
        return []


class StubCalendarService:
    async def calendars_for_container(
        self, session: AsyncSession, container_type: str, container_id: int,
    ) -> list[CalendarDTO]:
        return []

    async def pending_entries(
        self, session: AsyncSession, *, user_id: int | None, session_id: str | None,
    ) -> list[CalendarEntryDTO]:
        return []

    async def entries_for_page(
        self, session: AsyncSession, page_id: int, *, user_id: int | None, session_id: str | None,
    ) -> list[CalendarEntryDTO]:
        return []

    async def entry_by_id(self, session: AsyncSession, entry_id: int) -> CalendarEntryDTO | None:
        return None

    async def associated_entries(
        self, session: AsyncSession, content_type: str, content_id: int, page: int,
    ) -> tuple[list[CalendarEntryDTO], bool]:
        return [], False

    async def toggle_entry_post(
        self, session: AsyncSession, entry_id: int, content_type: str, content_id: int,
    ) -> bool:
        return False

    async def adopt_entries_for_user(
        self, session: AsyncSession, user_id: int, session_id: str,
    ) -> None:
        pass

    async def claim_entries_for_order(
        self, session: AsyncSession, order_id: int, user_id: int | None,
        session_id: str | None, page_post_id: int | None,
    ) -> None:
        pass

    async def confirm_entries_for_order(
        self, session: AsyncSession, order_id: int, user_id: int | None,
        session_id: str | None,
    ) -> None:
        pass

    async def get_entries_for_order(
        self, session: AsyncSession, order_id: int,
    ) -> list[CalendarEntryDTO]:
        return []


class StubMarketService:
    async def marketplaces_for_container(
        self, session: AsyncSession, container_type: str, container_id: int,
    ) -> list[MarketPlaceDTO]:
        return []

    async def product_by_id(self, session: AsyncSession, product_id: int) -> ProductDTO | None:
        return None


class StubCartService:
    async def cart_summary(
        self, session: AsyncSession, *, user_id: int | None, session_id: str | None,
        page_slug: str | None = None,
    ) -> CartSummaryDTO:
        return CartSummaryDTO()

    async def cart_items(
        self, session: AsyncSession, *, user_id: int | None, session_id: str | None,
    ) -> list[CartItemDTO]:
        return []

    async def adopt_cart_for_user(
        self, session: AsyncSession, user_id: int, session_id: str,
    ) -> None:
        pass